公开(公告)号：US3916663A

公开(公告)日：1975-11-04

申请号：US43596474

申请日：1974-01-23

申请人： NIPPON STEEL CORP

发明人： TAKESHITA KAZUMA ,  SATO KENJI ,  SHIMAZAKI YASUMI

IPC分类号： B21C37/12 ,  B21F3/02

CPC分类号： B21C37/12

摘要： An apparatus for forming spiral steel pipe by spirally curling a strip of metal with a row of interior forming rolls set on an interior forming stand and rows of exterior forming rolls respectively set on exterior forming stands. A mount is provided which extends in the direction of axis of the interior forming stand in such a manner as to cover the interior forming stand wholly except the part thereof equipped with the interior forming rolls; and a plurality of rows of interior supporting rolls are disposed on the outer surface of the mount nearly in parallel with the edges of the spiralled strip.

摘要翻译： 一种用于形成螺旋状钢管的装置，其具有设置在内部成形台上的一排内部成形辊和分别设置在外部成形支架上的一排外部成形辊的金属条。 提供了一种安装件，其以内部成形支架的轴线方向延伸，以便除了装配有内部成形辊的部分之外，还可以完全覆盖内部成形支架; 并且多排内部支撑辊布置在安装件的外表面上，几乎与螺旋带的边缘平行。